The number one rule for hosting a successful dinner party? Make sure your guests fear gruesome death by dinosaur at least once during the evening. The best way to achieve the effect? These ice ripples that mimic that scene—you know the one—from the original Jurassic Park. No T-Rex needed!

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Slip one into someone's glass then hold onto your butts. Extra points for playing this on repeat in the background. Guaranteed good—nay, great—times that will only cost $10 can be pre-ordered here.